Split and join methods in Ruby - Mini Project: Build & Apply

Split and join methods

📖 Scenario: You are working on a simple text processing tool that helps users rearrange words in a sentence.

🎯 Goal: Build a Ruby program that splits a sentence into words, reverses the order of the words, and then joins them back into a new sentence.

📋 What You'll Learn

Create a string variable with a specific sentence

Create a separator variable for splitting the sentence

Use the split method to break the sentence into words

Use the join method to combine the reversed words into a new sentence

Print the final reversed sentence

💡 Why This Matters

🌍 Real World

Text processing is common in chat apps, search engines, and data cleaning where splitting and joining words is essential.

💼 Career

Understanding string manipulation methods like split and join is important for roles in software development, data analysis, and automation scripting.

1

Create the sentence string

Create a string variable called sentence and set it to the exact text: "Learning Ruby is fun and rewarding".

Ruby

# Create the sentence string
# Your code here

Need a hint?

Use double quotes to create the string exactly as shown.

2

Create the separator variable

Create a variable called separator and set it to a single space character " ".

Ruby

sentence = "Learning Ruby is fun and rewarding"
# Create the separator variable
# Your code here

Need a hint?

The separator is a space character inside double quotes.

3

Split and reverse the words

Use the split method on sentence with separator to create an array called words. Then reverse the words array using the reverse method.

Ruby

sentence = "Learning Ruby is fun and rewarding"
separator = " "
# Split the sentence into words and reverse the array
# Your code here

Need a hint?

Chain the split and reverse methods to get reversed words.

4

Join and print the reversed sentence

Use the join method on words with separator to create a string called reversed_sentence. Then print reversed_sentence.

Ruby

sentence = "Learning Ruby is fun and rewarding"
separator = " "
words = sentence.split(separator).reverse
# Join the reversed words and print the result
# Your code here

Need a hint?

Use puts to print the final reversed sentence.